Uses of PTFE
1. The application of anti-corrosion performance, due to the defects in corrosion resistance of rubber, glass, metal alloys and other materials, it is difficult to meet the environment where the harsh temperature, pressure and chemical medium coexist, and the resulting loss is quite amazing. And PTFE material has become the main corrosion-resistant material in petroleum, chemical, textile and other industries because of its excellent corrosion resistance. Its specific applications include: conveying pipes, exhaust pipes, steam pipes for conveying corrosive gases, high-pressure oil pipes for rolling mills, high-, medium- and low-pressure pipes for aircraft hydraulic systems and cold-pressing systems, rectification towers, heat exchangers, kettles, towers, and tanks linings, valves and other chemical equipment. The performance of the seal has a great influence on the efficiency and performance of the entire machine. PTFE material has the characteristics of corrosion resistance, aging resistance, low friction coefficient and non-stickiness, wide temperature resistance range, and good elasticity, which makes it very suitable for the manufacture of seals with high corrosion resistance requirements and operating temperatures higher than 100 °C. Such as machinery, heat exchangers, high-pressure vessels, large-diameter vessels, valves, seals of grooved flanges of pumps, seals of glass reaction vessels, flat flanges, large-diameter flanges, shafts, piston rods, valve rods, Turbine pumps, tie rod seals, etc.
2. The application of low friction performance in terms of load, because the friction part of some equipment should not be lubricated, such as in the occasions where the lubricating grease will be dissolved by the solvent and fail, or the products in the papermaking, pharmaceutical, food, textile and other industrial fields need to avoid lubrication Oil contamination, which makes the filled PTFE material the most ideal material for oil-free lubrication (direct load bearing) of mechanical equipment parts. This is because the coefficient of friction of this material is the lowest of any known solid material. Its specific uses include bearings for chemical equipment, papermaking machinery, and agricultural machinery, as piston rings, machine tool guide rails, and guide rings; in civil engineering, it is widely used in bridges, tunnels, steel structure roof trusses, large chemical pipelines, and storage tanks. Support sliders, as well as bridge supports and bridge swivels.
